Packaging machine



s. COOPER PACKAGING MACHINE Originai Filed March 22. 1921 7 $heets $ht 1 May 10,1927.

5. COOPER PAC AGING MACHINE Original Filed March 22. 1921 7 51 341 1; 2

s. COOPER May 10 1927. 1,628,120

PACKAGING MACHiNB Original Filed Mar h 22- 1921 '7 Sheets-Sheet 3 May 10, 1927. s. COOPER PACKAGING MACHINE Original Filed March 22, 1921 '7 Shets-hg'et 4 May 10, 1927.

, s. COOPER PACKAGING MACHINE Original Filed March 22, 1921 'r Sheets-Sheet 5 May 10, 1927.

S. COOPER PACKAGING MACHINE Original File Mar h 22, 21 '7 Shag-Shoot 6 o i I May 10 1927.

s. COOPER PACKAGING MACHINE v' sheets-sheet Original Filed March 22. 1921 Patented May 10, 1927.

JSIMO'N GOO-PEER, OF BROOKLYN, NEW YORK.

PACKAGING MACHINE.

Application filed March 22, 1921, Serial No. 454,429. Renewed .October 9, 1926.

* in the following specification, which is .to be read inconjunction with the accompanying drawings wherein I have illustrated a practical commercial embodiment of the invention.

In the drawings referred to, Figure 1 is a broken side elevation, and Figure 2 is a top plan view .of the machine, these views being more or less diagrammatic for the purpose of better "illustrating the se-- quence of operations.

Figure 3 is an enlarged and part sectional view of the front or paper-feed end of the machine.

Figure 4 is a broken side view of this end portion of the machine.

Figure 5 is a broken detail side view of the top flap gluing devices.

Figure .6 is an .end view of the same taken transversely of the machine.

Figure 7 is a broken detail view of the mechanism for ;heelingin the rearward edge at the upper end of the wrapper, this view being taken transversely of the machine.

Figure 8 is a side view of "these same parts. Figures 9 and 10 are end ELIlCl SlClB views respectively of the mechanism for folding for a wrapper and shaping the severed portion about the mandrel.

Figure 16 is a detail plan View of the paper cutter.

Figure 17 is a broken plan view of the mechanism for holding and breaking; the wrapper about the mandrel.

Figure 18 is a broken plan view of the side seam folding devices.

Figure. 19 is a side view of the same taken transversely ,ofthe machine and illustrating diagrammatically the relation of the paper feeding and cutting mechanism thereto.

Figures 20 to 27 are detail views, illustrating successive operationsin the forinaance from the main body of the paper, a

presser breaks the wrapper about the sides of the mandrel and while thus held, the edges of the wrapper .are folded one over the other producing overlapping :flaps which are secured together by the previously ,applied adhesive (Figures '20 to 289. The mandrel with the wrapper thus secured in I the form of a tube thereon, is then advanced from the flap folders (Figure 14) past a pressure plate which holds the side seam while theadhesive is setting (Figure 12 From the .presser the mandrel is advanced to carry the upper end of the wrapper beneath a tucking device which at such time is operated to heel in the rearward upper edge of the wrapper (Figures 7, 8 and 24). In the next advancing movement of the mandrel, the forward upper edge is carried beneath .a plow. (Figures 9 and 10) which tucks in the forward upperaedge of the wrapper (Figure 25).

,In the next advancing movement, the

, pointed flaps at the upper endof the wrapper are spread apart (Figure 28) and at the next movement, one of these flaps passes 'benea-th a glue-applying device. On the succeeding movement, the adhesive flap is' turned down over the end of the wrapper and on the following movement, the other flap is treated with adhesive and turned down over the first secured flap. The wrappers thus finished may be then automatically ejected from the mandrels or in some instances, cartons may be slipped over the wrappers while still on the mandrels.

With this general operation in mind I will now describe the parts in detail.

The paper-feeding mechanisi'n at the front end of the machine is supported in the upright side frames 1 and 2 (Figures 3 and l) carried by the longitudinal side sills 3 and 1 which form the base of the machine. The side frames 1 and 2 carry at their upper extremities, the rolls 5 supporting the paper roll 6.

The web of paper is advanced by means f the paper-feeding rolls 7 and 8, between which the web is passed, as indicated in Figure 15. These paper-feeding rolls are intermittently operated by suitable gearing, a portion of the connecting gearing between said rolls being indicated at 5) and 10 in Figure 4;. I have also shown in this view and in Figure 3 how the outer paper-feeding roll 8 may be journaled in braclzets 11 fixed on the supporting shaft 12 which is provided with handles 13 by which said shaft can be rocked for the purpose of shifting the roll 8 toward or away from the companion feeding roll 7.

The gluing mechanism for the side seam is illustrated in Figures 3 and las consisting of a glue box 15 pivoted at one end at 16 and adapted to be raised and lowered by means of a link 17 pivoted to its free end and acted on by a cam 18 on the longitudinally extending shaft 19. In the forward end of this glue box there is journaled a glue roll 20 carrying a gear to mesh with the constantly rotating gear when the box is raised. Backing rollers 21 support the paper while the glue roll 20 is applying the strip of adhesive to the face thereof (Fig ure 15).

The glue-applying roll is positioned to apply a strip of the adhesive adjacent one longitudinal edge of the paper (the near edge in Figure 3) as is timed to terminate this strip at a point short of what becomes the upper edge of the wrapper. This strip of adhesive is indicated at 20 in Figures 21 and 22. The feed roller 7 may be relieved or cut away at a point in line with the adhesive strip, as indicated at 20 in Figure 2.

The cooperating feed rolls 7 and 8 advance the forward end of the paper into position in front of one of the mandrels or formers 441, as indicated at 6 in Figure 3, and after the paper is gripped against the mandrel, the cutter blade 22 is operated to sever the wrapper-length of paper. This paper cutter is supported from the side frame by the bracket 23 and includes a fixed blade 24 which cooperates with the movable blade 22,

The movable cutter blade is actuated at the proper time from a link 96 (Figure 4) which is actuated by a cam 97 on cam shaft 19 and is connected with a rocker arm 98 carrying an upwardly projecting arm 99 connected by a strap 99 with a rearwardly projected portion of the cutter blade at 25 (see also Fi ure 16).

The wrapper-length of paper is first gripped and held against the mandrel 4A by a presser, illustrated at 34: in Figures 15 and 17 and shown as carried by a spring-pressed plunger operating in the carrier 36. This carrier is formed with bearings 37 sliding on the supporting rods 27 and is reciprocated back and forth by a link 28 connected with the upstanding arm of a bell-crank 29 pivoted at 30 and carrying on its other arm a roll 3i cooperating with the cam 32 on cam shaft 19. At the opposite sides of the clamping plate 34 are the presser plates 33 pivoted on the carrier 36 by means of spring hinges 33.

In the forward movement of the carrier 36, the presser head 3% first engages the dependent portion of the paper and clamps the same against the rearward face of the man drel 44. When thus held, the knife operates to sever the wrapper from the end of the web of paper. In the continued forward movement of the carrier 36, the presser plates 33 operate to bend the protruding wings of the paper about the rearward corners of the mandrel, as indicated in Figure 21.

After this the flap folder 45 (Figures 1, 2 and 14) is swung inwardly to fold the edge of paper which has been glued, over the front of the mandrel and then the second flap folder 48 is swung inward. to fold the second flap over the adhesive portion of the second flap Figures 22 and 23). The construction of these flap folders is shown in Figures 18 and 19. In these views, 47 indicates a cam provided on the cam shaft 19 and arranged to operate the folders through the medium of a rod 18 carrying a roll 49 at one end engaging the cam, and a rack 50 at its other or outer end engaging a pinion 51 on the lower end of the upright shaft 52.

This upright shaft carries the outstanding tubular arms 53 in which are slidingly received the arms 54 of the folding blade or roll 46. The folding roll is pressed outwardly by means of springs 55 surrounding the portions 54: which telescopically fit in the tubular arms 53, the outward movement of the folding roll being limited by nuts 56 engaged on the rearward or shaft ends of the arms 5f.

The first folding device is operated from the second folding device by means of an outstanding arm 57 on the shaft 52 engaging a lug or shoulder 58 on the arm 59 which is secured to the lower end of the upright supporting shaft 60. This shaft, like the shaft 52, carries outstanding tubular arms 61 slidingly receiving the rods or arms 62 of the folder 45, springs 63 .being provided for forcing said arms outwardly in their tubular bearings, such movement being limited by stop nuts 64 on the extended inner ends of rods 62. The folder 45 is shown as provided with angularly projecting shoes or folder blades 67 forsliding contact with the wrapper, these blades beingtensioned against the wrapper through the medium of an outstanding arm 65 connected with the folding roll 45 and engaged by a tension spring 66.

The parts described are so timed and. related that as the rack 50 moves inwardly under the action vof cam f7, and the shaft52 is thereby rotated in .the left hand direction in Figure 18, the arm '57 will swing away from the lug 58 and thereby permit the tension spring 68 connected with the lever 59 to swing the first folding roll l5 toward the lower edge of the wrapper. As this first folder moves into engagement with the projecting edge of the wrapper, the, shoes 67 break the wrapper around the corner of the mandrel and hold it in this position while the second folder in its continued movement, engages and breaks the other edge of the wrapper about the upper right hand corner of the mandrel, the final position of the two folders being substantially as indicated in Figure 14;.

The mechanisms thus far described in detail are all located at what may be considered the first station of the machine (see Figure 2). Thus, at this first station, the paper is fed, adhesive is applied adjacent one edge, to a wrapper-length of the paper, the dependent portion of a wrapper-length is clamped against the adjacent face of a mandrel, the wrapper is then severed from the balance of the strip, the edges of the wrapper are broken about the sides of the mandrel and are then folded together into overlapping relation over the front face of the mandrel. The feed roll is recessed in line with the adhesive strip to prevent gumming the same, and the adhesive-applying operation is discontinued in time to leave a blank space at the end of the wrapper in line with the cutter, so that gumming of the cutter is also avoided.

The mandrels 4A are shown as mounted equidistantly on plates 43 carried by a continuous belt or conveyor 38, said. plates 43 sliding in guide-ways 43 and being held rigidly in upstanding relation by the angle braces 45. The endless belt or chain 38 is supported at the rear end of the machine by :a pulley or sprocket 39 on shaft 40 and at the front end of the machine, said belt or chain is supported by the pulley 41 011 shaft 42, one or both of said shafts being driven to give the necessary intermittent motion to the conveyor.

At station 2, (Figure 2) there is provided a presser 68 for holding the voverlapped seam while the adhesive is setting. This presser as shown :in detail in Figures 11, 12 and 13, is usually constructed as a smooth plate having the forward edge thereof relieved )or turned outwardly and as supported by brackets 70 on the rods 69 slidingly fitting in said brackets and operated on by springs 71.

After the primary folders 45, 46 complete the side seam, in Figure 14, said folders momentarily rest in this position while, the mandrel advances .to the second station, thereby causing the seam just completed ,to be wiped by folder 46. This gives a preliminary set to the seam which is completed and made secure by the presser 68.

At station 3 there is provided atucker 72 carried by rock shaft 73 journaled in-a hearing 74 and operated by a rock arm 75 to which there is connected a link 76 actuated by cam 77 on cam shaft 19, link 76 carrying a yoke 78 at its lower end bearing a roll 7 9 in engagement with said cam (Figures 7 and V lVhen the wrapper is advanced tostation 3, the tucker 7 2 occupies the dotted position shown in Figure 8 and is then rocked downwardly to heel in the rearward upstanding edge of the wrapper-,2 as indicated-at 72 m Figure 24.

In its passage to'station l, the wrapper passes beneath a plow vor folding plate 79 supported by pins 80 slidingly fitting in the stationary supporting bracket 74, said plate operating to tuck in the fOl'WnlClllPPGl edge of the wrapper tube, as indicated at 79 in Figure 25.

At or adjacent station 4, there is provided an opener 81 having a tapered nose 81 to enter between the upstanding pointed flaps of the wrapper tube and to spread .them apart in flat relation, as indicated at 81 in Figures 28 and 29.

The wrapper has thus advanced to station 5 with the pointed flaps or ears outstanding or projecting laterally from the upper end of the wrapper and at thisstation one of the flaps, the lower one in Figure 2, is engaged by adouble glue roll 83 rotating transversely to the advancing movement of the carrier and adapted to apply two spots or strips of adhesive to this one flap.

The construction of this adhesive-applying mechanism isillustrated particularly in Figures 5 and 6, and as there shown, the double roll 83 operates partly in the glue box 84 carried by a bracket 89 which is pivoted at 90 and is rocked downwardly at the proper instant by a push rod 91 having a fork 92 at its lower end carrying a roll 93 in engagement with a cam 94 on the cam shaft 19. i

In the passage of the wrapper from sta-v tion 5 to station 6, the adhesive flap is turned over and pressed down on top of the Wrapper in the manner indicated in Figure 26 by a turn-down folder 82 (Figures 1 and 2).

In the passage from station 6 to station 7, the second flap passes beneath the glueapplying roll or rolls 85 (Figures 1, 2 and 5) which rotate in the plane of the second flap and travel in the same direction and at the same linear movement as the Wrapper so as to apply a strip or strips of adhesive from the glue box 86 to the upper surface of the second flap. As the Wrapper approaches station 7, the second flap with the adhesive thereon is turned over by the folder blade 87 and pressed down over the first flap, thus sealing the upper end of the box or package. This final folder 87 may be extended for some distance, as indicated in Figure 1, to hold the flaps until the adhesive has thoroughly set.

After the Wrappers have thus been formed on the mandrels, various other operations may be carried out while said Wrappers are still on the mandrels. Thus, the conveyor may be extended and means may be pro vided for automatically slipping cartons over the wrappers. This work also may be done by hand at a station provided for this purpose.

The Wrappers and also the cartons, if cartons have been placed over the Wrappers, may be held on the mandrels after the conveyor has passed over the pulley at the end of the machine, by a supporting roll provided for that purpose and, if desired, means may be provided for automatically ejecting the Wrappers or both Wrappers and cartons when a predetermined point is reached in the travel of the conveyor.

A suitable form of ejector is illustrated particularly in Figures 80 and 31 where 88 designates a slide or pusher at the end of the mandrel Which is adapted to be actuated by an outstanding pin 100 disposed near the inner end of the mandrel and projecting through a slot 101 in the face of the main drel into position to engage a cam track or roll standing at the side of the conveyor.

It will be understood that suitable mechanical connections will be 'u'ovided between the various elements illustrated, to produce the proper sequence of operations as described. I have illustrated certain of these connections in a conventional Way, but wish it understood that any desired mechanisms of this character may be employed. It will he understood also that the struc ture may be modified to suit various requirements encountered in the art, and this without departing from the scope of protection herein claimed. It will also be understood that the terms which I have employed are in a descriptive rather than in a limiting sense, except for such limitations as may be imposed by the condition of the art.

What I claim is:

1. In a machine of the character described, a traveling mandrel, means for advancing a web of material into position at the side of said mandrel, means for clamping said material against the mandrel, means for severing the material while thus held and means for folding the severed length of material about the mandrel.

2. In a machine of the character dese 'ibed, a former, means for feeding a strip of material into position adjacent said former, means for applying adhesive to a predetermined length of said strip during the feeding movement thereof, means for clamping said strip against the former, means for severing the strip adjacent the former While clamped thereto and means for folding said severed length with the adhesive material about the former.

8. In a machine of the character described, a mandrel, means for feeding a length of material in position beside the mandrel, means for holding the thus fed length of material against the mandrel, means for applying adhesive to said length of material during the feeding movement thereof and arranged to leave a portion of the material bare, means for severing the length of material at the bared portion thereof and folding devices for folding the severed length of material about the mandrel.

at. In apparatus of the character described, a mandrel, an adhesive-applying device, means for feeding a sheet of material past said adhesive-applying device to the mandrel, means for engaging the adhesive-applying device with the sheet during the feeding motion thereof and for withdrawing the adhesive-applying device from the sheet to leave a portion of the sheet bare of adhesive, means for severing the sheet at such bare portion, means for folding the severed sheet about the mandrel and means for applying adhesive to the bare portion of the sheet on the mandrel.

In apparatus of the character described, a mandrel, an adhesive-applying device, means for feeding a sheet of material past said adhesiveapplying device to the mandrel, means for engaging the adhesive-applying device With the sheet during the feeding motion thereof and for withdrawing the adhesive-applying device from the sheet prior to the end of the feeding move ment to leave a portion of the sheet bare of adhesive, means for severing the sheet at such bare portion, means for applying adhesive to the bare portion of the sheet on the mandrel and means for then folding said last portion to which the adhesive has been applied.

6. In combination, a mandrel, a cutter above said mandrel, means for feeding a Web of material down past said cutter into .position at the side of :the mandrel, means for holding the dependent =section ,of the material agains zth m nd elan m ans 5 0 hen operating the cutter to sever said held section from the :balance of the material.

7. In combination, a mandrel, .a cutter above saidma-ndrel, meansfor feeding a-iveb of material down pastvsaid cutter into posis tion-at the side of the mandrel, means for holding ,the dependent section of the material against the mandrel, -means for then operating the cutter to sever said held section from the balance of the material and folding devices forthen shaping the severed and held seoti on ofmaterialabout themandrel. I I

8. In combination, .a anandrel, a cutter above said ma-ndreh neansfor feedinga Web of-material down past said cutteriinto posi-' tion at theside of the mandrel, means 'for holdingthedependent section of the naterialagainstthe mandrehmeansfor then operatingithe cutter to sever saidheld section fromthegbalance ofthe material. and means for applyingadhesive to, the material on its passage to the ,cutter and for ,terminating said adhesive at that ortion of the material Which is operated on y,the.cutter.

9. In combination, web feeding devices, means for operating-the same-to advance a predetermined length of material, an adhea pp ying d vic ,m .f Operating the same to apply adhesive to aportion only of the ;length of ,materialduring the vancement of the Web bythe Web feeding devices and a severing deviceqpositioned to operate. on a portion ofthe n aterialwhich is bare of adhesive.

10. In -a machine ,of the character described, means -,f.0r supporting a Web of paper, an adhesive-applying device, .means for feeding alength ofthe Web W'lthfi portion thereof in contact With said adhesiveapplying device, means for severing a length of the Web to which adhesive has been applied, a mandrel positioned below said severing means and folding devices arranged to fold the severed length about said mandrel.

11. In a machine of the character described, amandrel traveling in a definite path, means for applying a tubular Wrapper thereto, an adhesive-applying device operating transversely of the mandrel travel and a second adhesive-applying device operating longitudinally of the mandrel travel.

12. In a machine of the character described, a mandrel traveling in a definite path, means for applying a tubular Wrapper thereto, an adhesive-applying device operating transversely of the mandrel travel, a seeond adhesive-applying device operating longitudinally of the mandrel travel and means for positioning portions of the Wrapper on themandrel in place toibe acted on .by said adhesive-applying devices.

13. iIn ,a machine of ,the character .described, a mandrel traveling inv a definite path, means sfQr applyingatubular Wrapper thereto, an.,adhesiv.e-,applyi11g roll, operating transversely .of :the mandrel travel and a second adliesiverapplyin g r-oll operatingilongitudinally of the vmanldrelztravel.

.ltilncombination, a longitudinallytraveling mandrel, a transverselyrotatingglue roll for applying adhesive to a Wrapper on: the mandrelaind .a longitudinally. rotating glue roll for applying adhesive to the wrapper.

15. In ,combination, a traveling .lna-ndrel forsupporting a Wrapper, an adhesive-applying devicein the path of the wrapper'on said mandrel and operating transversely of the inandrel travel and means for inter-mittently scillating said ,devicevto carry the same into, engagement Withthewvnapper on the mandrel.

l6. ;In combination, a traveling mandrel for supporting a wrapper an adhesive-applying device .in the pathofthe Wrapper on said mandrel and operating; transversely f th m d t :ave1,..means -.for.intermittently oscillating saiol device to carry lthe same into engagement with the Wrapperon the mandrel anda second adhesive-applying device operating in the ;line of travel and at thesame speed of move-m yet as the wrapper onthemandrel.

17.11 11 combination, .a series .of spaced travelingmandrels, a plunger associated With each of said mandrels, means for formingwrappers about said mandrels, and means for automatically actuating the plunger-s for discharging said Wrappers from the mandrels at ,a -predetermined point t in the I travel of the same.

d8. In a machine ,of the .character .de scribed, forming mandrel, asliding ejec-. tor .mounted i therein and .an operating {pin projecting from said ejector.

19. In a machine of the character described, a mandrel and a swinging resilient folder for folding the edge of a Wrapper over said mandrel, said folder having angularly projecting spring operated shoes for contact With the Wrapper.

20. In a machine of the character described, an oscillating shaft, an outstanding spring pressed folding element carried by said shaft, a second oscillating shaft, an outstanding spring pressed folding element carried by said second shaft and connections between said shafts for causing one to follow the operation of the other.

21. In a machine for making boxes of the character described, the combination of intermittently moving vertical means for positioning a length of paper at one of the vertical sides of said mandrel,

mandrels,

a device for clamping said length against the mandrel and means for then severing said clamped length ata predetermined point.

22. In a machine for making boxes of the character described, the combination of intermittently moving vertical mandrels, means for positioning a length of paper at one of the vertical sides of said mandrel, a device for clamping said length against the mandrel, means for then severing said clamped length at a predetermined point above the upper end of the mandrel and means for shaping said severed length in tubular form about the mandrel and for turning in the projecting upper portion of the same.

23. In a machine for making paper boxes, an intermittently moving vertical mandrel, means for forming a tubular wrapping about said mandrel, means for heeling in oppositely disposed portions at the upper end of the wrapper, means for forcing outwardly flaps of the wrapper between said heeled in portions and means for applying two narrow strips of adhesive to one of said outstanding flaps.

2 In a machine for making paper boxes, an intermittently moving vertical mandrel, means for forming a tubular wrapping about said mandrel, means for heeling in oppositely disposed portions at the upper end of the wrapper, means for forcing outwardly flaps of the wrapper between said heeled in portions, means for applying two narrow strips of adhesive to one of said outstanding flaps, means for folding in said adhesive flap and devices for applying adhesive to the other flap and for folding the same over the first flap.

In a machine for making paper boxes, an endless conveyor having upper and lower reaches, mandrel projecting from said conveyor, a plunger associated with each mandrel box-forming mechanism co-operating with the mandrels on the up per reach of the conveyor and means along the lower reach of the conveyor for actuating the plungers for ejecting the boxes from the mandrels.

26. In a machine for making paper boxes, means for separately and successive ly applying adhesive to two outside top flaps of a wrapper, means for folding one of said flaps before the adhesive is applied to the other flap, and means for folding the last mentioned flap over the folded flap and for maintaining pressure on the flaps after such folding.

27. In a machine for making paper boxes, a mandrel, a folder for bending the edge of a wrapper over said mandrel, means for applying adhesive to said edge, a second folder for laying another fold of the paper over said first fold and in contact with the adhesive, means for operating the first folder to hold the first fold while the second folder is operating, means for shifting the mandrel past the folders and means for holding the second folder relatively stationary during such advancing movement to thereby cause the same to Wipe the seam produced.

In a machine for making paper boxes, means for separately and successive- 1y folding the top flaps of a wrapper one over the other and means for applying adhesive to the flaps just prior to each of said folding operations.

29. In a machine of the character clescribed, a former, coacting rolls for feeding a sheet of material into position adjacent the former, means for applying a strip of adhesive to a predetermined portion of said sheet, one of said feed rolls being circumferentially grooved in alignment with the adhesive strip.

In testimony whereof I aflix my signature.

SIMON COOPER. 

